Electric-circuit system



v(No Model.)

o. F. BRUSH. BLBGTRIG CIRCUIT SYSTEM.

Patented July 11, 1882.

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ATTllNEYS UNITED vSTATES PATENT OFFICE.

CHARLES F. BRUSH, OF CLEVELAND, OHIO.

ELECTRIC-CIRCUIT SYSTEM.

SPECIFICATION forming part of Letters Patent No. 261,077, dated. July 11, 1882.

(No model.)

To all whom it may concern Be it known that I, CHARLES F. BRUSH, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in ElectriaCircuit Systems; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, ret'- erence being had to the accompanying drawings, which form part of this specification.

My invention relates to a system of electric circuits for electric-lighting and electric-engineerin g purposes.

Figure 1 ot' the drawings indicates a common method of dividing an electric current so as to utilize its energy simultaneously at several points. Fig. 2 illustrates another well known method of arriving at the same result. Fig. 3 shows a well-known combination ofthe two preceding methods. Fig. 4 shows the arrangement ot' circuits constituting my invention. Fig. 5 shows an arrangement oi' circuits equivalent to thatin Fig. 4. Fig. 6 shows two or more minor applications of current at one or several principal points. Fig. 7 indicates how my invention may be modified aud indefinitely extended.

The well-known method shown in Fig. l of dividing an electric current so as to utilize its energy simultaneously at several points possesses the advantage that if one or more of the branches of the electric circuit become broken the remaining branches remain intact,

' while it has the disadvantage of requiring a current of comparatively-low electro-motive force and large volume, necessitating large conductors and entailiug much loss of energy when the points of application are i'ar removed from the source of current. rlhe plan shown in Fig. 2 has the merit of requiring a current ofcomparatively-high electro-motive force and small volume, capable of traversing long conductors of small size with comparatively little loss of energy, while it entails the disadvantage that if the circuit is broken at one ofthe points of application of the current the latter is interrupted at all points.

Fig. 3 shows a combination ot the methods already described, consisting of' a multiplication ot' the second method. This plan is evi rand is superior to either.

dently'a compromise between the advantages and disadvantages of the two former ones,

It is the one commonly employed in telegraphy, where several lines, each operating several instruments or electric engines, are worked by a single battery.

My invention consists in the improvement of the third method described, whereby the full advantage of the first method is secured to it.

Fig. 4illustrates my arrangement of circuits for and of points of application ot' an electric current. This system is evidently a multiplication of the first method; but it possesses advantages not heretofore obtained in any system of circuits. By this method currents of high electro-motive force and of consequent easy transportation may be utilized simultaneously at many points, while the interruption of the current at any one or several of these points (provided they be not all in any one vertical series ot` points, indicated in the dia gram Fig. 4, which is a remote contingency) will not materially affect the current at any other point.

Fig. 5 shows my invention in more intelligible form and as practically employed.

The current may be utilized at any of its points of application in the development ot' light, heat,chemical action, motive power, or any purpose for which a current is desired; and it may be employed for different purposes at different points, or for several different purposes at any or each of its principal points of application. Such an arrangement as last indicated is shown in Fig. 6, wherein two or more minor applications of the current are made in one or several of its branches. Obviously the total consumption or utilization of current need not be the same in all branches of the circuit, but may differ widely at different points.

As already indicated, Fig. 7 shows how my invention may be modified and extended indefinitely.

My system of electric circuits may bc employed in the .distribution of electricity for lighting or other purposes in rooms, buildings, blocks of buildings, streets, and whole cities. Byits means portions of the same current may be independently and simultaneously einployed, for the same or dierent purposes, in

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many di'erent and widely-separated localities.

What I claim is l. A system for transmitting electric currents to translating devices, consisting essentially in an electrical conductor divided along lits length into two or more series of paths or branches, each path or branch of each series being electrically' connected at opposite ends with the main conductor and translating devices interposed in said branch circuits, substantially as set forth.

2. A system for transmitting electric cnrrents to translating devices arranged in mul- 

